55157652 has 96 divisors (see below), whose sum is σ = 161481600. Its totient is φ = 16128000.

The previous prime is 55157651. The next prime is 55157659. The reversal of 55157652 is 25675155.

It is a happy number.

55157652 is a `hidden beast` number, since 551 + 57 + 6 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55157651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33652 + ... + 35252.

It is an arithmetic number, because the mean of its divisors is an integer number (1682100).

Almost surely, 2^55157652 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 55157652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80740800).

55157652 is an abundant number, since it is smaller than the sum of its proper divisors (106323948).

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

55157652 is a wasteful number, since it uses less digits than its factorization.

55157652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1646 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 55157652 is about 7426.8197769974. The cubic root of 55157652 is about 380.6582588812.

The spelling of 55157652 in words is "fifty-five million, one hundred fifty-seven thousand, six hundred fifty-two".