1520670552 has 32 divisors (see below), whose sum is σ = 3840874800. Its totient is φ = 501663744.

The previous prime is 1520670551. The next prime is 1520670577. The reversal of 1520670552 is 2550760251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520670551) 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, 324277 + ... + 328932.

Almost surely, 2^1520670552 is an apocalyptic number.

1520670552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1520670552 is an abundant number, since it is smaller than the sum of its proper divisors (2320204248).

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

1520670552 is a wasteful number, since it uses less digits than its factorization.

1520670552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653315 (or 653311 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1520670552 is about 38995.7760789550. The cubic root of 1520670552 is about 1149.9484670039.

It can be divided in two parts, 15206 and 70552, that added together give a palindrome (85758).

The spelling of 1520670552 in words is "one billion, five hundred twenty million, six hundred seventy thousand, five hundred fifty-two".