1525161552 has 40 divisors (see below), whose sum is σ = 3993982464. Its totient is φ = 501421824.

The previous prime is 1525161541. The next prime is 1525161553. The reversal of 1525161552 is 2551615251.

It is a super-2 number, since 2×1525161552² = 4652235519398097408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525161553) 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, 214128 + ... + 221135.

Almost surely, 2^1525161552 is an apocalyptic number.

1525161552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1525161552 is an abundant number, since it is smaller than the sum of its proper divisors (2468820912).

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

1525161552 is a wasteful number, since it uses less digits than its factorization.

1525161552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435347 (or 435341 counting only the distinct ones).

The product of its digits is 15000, while the sum is 33.

The square root of 1525161552 is about 39053.3167861579. The cubic root of 1525161552 is about 1151.0794029264.

The spelling of 1525161552 in words is "one billion, five hundred twenty-five million, one hundred sixty-one thousand, five hundred fifty-two".