1520202252 has 12 divisors (see below), whose sum is σ = 3547138616. Its totient is φ = 506734080.

The previous prime is 1520202251. The next prime is 1520202259. The reversal of 1520202252 is 2522020251.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1520202252² = 4622029773971743008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520202251) 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, 63341749 + ... + 63341772.

Almost surely, 2^1520202252 is an apocalyptic number.

1520202252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1520202252 is an abundant number, since it is smaller than the sum of its proper divisors (2026936364).

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

1520202252 is a wasteful number, since it uses less digits than its factorization.

1520202252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126683528 (or 126683526 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1520202252 is about 38989.7711201284. The cubic root of 1520202252 is about 1149.8304102787.

The spelling of 1520202252 in words is "one billion, five hundred twenty million, two hundred two thousand, two hundred fifty-two".