54625530 has 64 divisors (see below), whose sum is σ = 136080000. Its totient is φ = 14023680.

The previous prime is 54625517. The next prime is 54625541. The reversal of 54625530 is 3552645.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109221 + ... + 109719.

It is an arithmetic number, because the mean of its divisors is an integer number (2126250).

Almost surely, 2^54625530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54625530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68040000).

54625530 is an abundant number, since it is smaller than the sum of its proper divisors (81454470).

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

54625530 is a wasteful number, since it uses less digits than its factorization.

54625530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 54625530 is about 7390.9086044951. The cubic root of 54625530 is about 379.4301940238.

It can be divided in two parts, 54625 and 530, that added together give a palindrome (55155).

The spelling of 54625530 in words is "fifty-four million, six hundred twenty-five thousand, five hundred thirty".