51552030 has 16 divisors (see below), whose sum is σ = 123724944. Its totient is φ = 13747200.

The previous prime is 51552023. The next prime is 51552071. The reversal of 51552030 is 3025515.

It is a super-2 number, since 2×51552030² = 5315223594241800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51551988 and 51552006.

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, 859171 + ... + 859230.

It is an arithmetic number, because the mean of its divisors is an integer number (7732809).

Almost surely, 2^51552030 is an apocalyptic number.

51552030 is an abundant number, since it is smaller than the sum of its proper divisors (72172914).

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

51552030 is a wasteful number, since it uses less digits than its factorization.

51552030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718411.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51552030 is about 7179.9742339371. The cubic root of 51552030 is about 372.1761941386.

Adding to 51552030 its reverse (3025515), we get a palindrome (54577545).

The spelling of 51552030 in words is "fifty-one million, five hundred fifty-two thousand, thirty".