1520885025 has 96 divisors (see below), whose sum is σ = 3227472000. Its totient is φ = 693964800.

The previous prime is 1520885021. The next prime is 1520885057. The reversal of 1520885025 is 5205880251.

1520885025 is a `hidden beast` number, since 1 + 520 + 88 + 50 + 2 + 5 = 666.

It is not a de Polignac number, because 1520885025 - 2² = 1520885021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1520885021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120201 + ... + 132249.

It is an arithmetic number, because the mean of its divisors is an integer number (33619500).

Almost surely, 2^1520885025 is an apocalyptic number.

1520885025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1520885025 is an abundant number, since it is smaller than the sum of its proper divisors (1706586975).

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

1520885025 is a wasteful number, since it uses less digits than its factorization.

1520885025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12096 (or 12085 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 1520885025 is about 38998.5259336811. The cubic root of 1520885025 is about 1150.0025267745.

The spelling of 1520885025 in words is "one billion, five hundred twenty million, eight hundred eighty-five thousand, twenty-five".