1552401252 has 36 divisors (see below), whose sum is σ = 3952781196. Its totient is φ = 513688320.

The previous prime is 1552401247. The next prime is 1552401269. The reversal of 1552401252 is 2521042551.

1552401252 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 401 + 252 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1217730816 + 334670436 = 34896^2 + 18294^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1552401252² = 4819899294422335008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152449 + ... + 162312.

Almost surely, 2^1552401252 is an apocalyptic number.

1552401252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1552401252 is an abundant number, since it is smaller than the sum of its proper divisors (2400379944).

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

1552401252 is a wasteful number, since it uses less digits than its factorization.

1552401252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314908 (or 314903 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1552401252 is about 39400.5234990603. The cubic root of 1552401252 is about 1157.8918438186.

The spelling of 1552401252 in words is "one billion, five hundred fifty-two million, four hundred one thousand, two hundred fifty-two".