51911202 has 16 divisors (see below), whose sum is σ = 118654272. Its totient is φ = 14831760.

The previous prime is 51911129. The next prime is 51911213. The reversal of 51911202 is 20211915.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617949 + ... + 618032.

It is an arithmetic number, because the mean of its divisors is an integer number (7415892).

Almost surely, 2^51911202 is an apocalyptic number.

51911202 is an abundant number, since it is smaller than the sum of its proper divisors (66743070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51911202 is a wasteful number, since it uses less digits than its factorization.

51911202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235993.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 51911202 is about 7204.9428866577. The cubic root of 51911202 is about 373.0385333957.

The spelling of 51911202 in words is "fifty-one million, nine hundred eleven thousand, two hundred two".