55692040 has 64 divisors (see below), whose sum is σ = 133171200. Its totient is φ = 20901888.

The previous prime is 55692031. The next prime is 55692041. The reversal of 55692040 is 4029655.

It is a junction number, because it is equal to n+sod(n) for n = 55691993 and 55692011.

It is not an unprimeable number, because it can be changed into a prime (55692041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96232 + ... + 96808.

It is an arithmetic number, because the mean of its divisors is an integer number (2080800).

Almost surely, 2^55692040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55692040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66585600).

55692040 is an abundant number, since it is smaller than the sum of its proper divisors (77479160).

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

55692040 is a wasteful number, since it uses less digits than its factorization.

55692040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55692040 is about 7462.7099635454. The cubic root of 55692040 is about 381.8836300231.

The spelling of 55692040 in words is "fifty-five million, six hundred ninety-two thousand, forty".