51935856 has 40 divisors (see below), whose sum is σ = 153335424. Its totient is φ = 14838720.

The previous prime is 51935843. The next prime is 51935869. The reversal of 51935856 is 65853915.

It is an interprime number because it is at equal distance from previous prime (51935843) and next prime (51935869).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 76950 + ... + 77621.

Almost surely, 2^51935856 is an apocalyptic number.

51935856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51935856 is an abundant number, since it is smaller than the sum of its proper divisors (101399568).

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

51935856 is a wasteful number, since it uses less digits than its factorization.

51935856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154589 (or 154583 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 51935856 is about 7206.6535923409. The cubic root of 51935856 is about 373.0975793311.

The spelling of 51935856 in words is "fifty-one million, nine hundred thirty-five thousand, eight hundred fifty-six".