2124551601 has 6 divisors (see below), whose sum is σ = 3068796770. Its totient is φ = 1416367728.

The previous prime is 2124551593. The next prime is 2124551621. The reversal of 2124551601 is 1061554212.

2124551601 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 5 + 51 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2115908001 + 8643600 = 45999^2 + 2940^2 .

It is not a de Polignac number, because 2124551601 - 2³ = 2124551593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2124551621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118030636 + ... + 118030653.

Almost surely, 2^2124551601 is an apocalyptic number.

It is an amenable number.

2124551601 is a deficient number, since it is larger than the sum of its proper divisors (944245169).

2124551601 is a wasteful number, since it uses less digits than its factorization.

2124551601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236061295 (or 236061292 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2124551601 is about 46092.8584598525. The cubic root of 2124551601 is about 1285.5503607252.

The spelling of 2124551601 in words is "two billion, one hundred twenty-four million, five hundred fifty-one thousand, six hundred one".