42052020501 has 16 divisors (see below), whose sum is σ = 56368243008. Its totient is φ = 27885312000.

The previous prime is 42052020487. The next prime is 42052020511. The reversal of 42052020501 is 10502025024.

It is a happy number.

It is not a de Polignac number, because 42052020501 - 2¹⁹ = 42051496213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42052020511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3451861 + ... + 3464021.

It is an arithmetic number, because the mean of its divisors is an integer number (3523015188).

Almost surely, 2^42052020501 is an apocalyptic number.

It is an amenable number.

42052020501 is a deficient number, since it is larger than the sum of its proper divisors (14316222507).

42052020501 is a wasteful number, since it uses less digits than its factorization.

42052020501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18212.

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 42052020501 its reverse (10502025024), we get a palindrome (52554045525).

The spelling of 42052020501 in words is "forty-two billion, fifty-two million, twenty thousand, five hundred one".