1542636552 has 16 divisors (see below), whose sum is σ = 3856591440. Its totient is φ = 514212176.

The previous prime is 1542636551. The next prime is 1542636631. The reversal of 1542636552 is 2556362451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542636552.

It is not an unprimeable number, because it can be changed into a prime (1542636551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32138238 + ... + 32138285.

It is an arithmetic number, because the mean of its divisors is an integer number (241036965).

Almost surely, 2^1542636552 is an apocalyptic number.

1542636552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1542636552 is an abundant number, since it is smaller than the sum of its proper divisors (2313954888).

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

1542636552 is a wasteful number, since it uses less digits than its factorization.

1542636552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64276532 (or 64276528 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 1542636552 is about 39276.4121579352. The cubic root of 1542636552 is about 1155.4589986190.

The spelling of 1542636552 in words is "one billion, five hundred forty-two million, six hundred thirty-six thousand, five hundred fifty-two".