521552034 has 20 divisors (see below), whose sum is σ = 1168663254. Its totient is φ = 173850624.

The previous prime is 521551937. The next prime is 521552069. The reversal of 521552034 is 430255125.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 358913025 + 162639009 = 18945^2 + 12753^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 521551989 and 521552007.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1609567 + ... + 1609890.

Almost surely, 2^521552034 is an apocalyptic number.

521552034 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

521552034 is an abundant number, since it is smaller than the sum of its proper divisors (647111220).

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

521552034 is a wasteful number, since it uses less digits than its factorization.

521552034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219471 (or 3219462 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 521552034 is about 22837.5137438382. The cubic root of 521552034 is about 804.9443959381.

The spelling of 521552034 in words is "five hundred twenty-one million, five hundred fifty-two thousand, thirty-four".