1551553152 has 64 divisors (see below), whose sum is σ = 4125948960. Its totient is φ = 516602880.

The previous prime is 1551553151. The next prime is 1551553163. The reversal of 1551553152 is 2513551551.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1551553152² = 4814634366962270208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1551553151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464127 + ... + 467457.

Almost surely, 2^1551553152 is an apocalyptic number.

1551553152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1551553152 is an abundant number, since it is smaller than the sum of its proper divisors (2574395808).

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

1551553152 is a wasteful number, since it uses less digits than its factorization.

1551553152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4549 counting only the distinct ones).

The product of its digits is 18750, while the sum is 33.

The square root of 1551553152 is about 39389.7594813677. The cubic root of 1551553152 is about 1157.6809475369.

The spelling of 1551553152 in words is "one billion, five hundred fifty-one million, five hundred fifty-three thousand, one hundred fifty-two".