690271525 has 12 divisors (see below), whose sum is σ = 857882592. Its totient is φ = 550961840.

The previous prime is 690271511. The next prime is 690271529. The reversal of 690271525 is 525172096.

It is not a de Polignac number, because 690271525 - 2⁵ = 690271493 is a prime.

It is a super-5 number, since 5×690271525⁵ (a number of 45 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690271529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20089 + ... + 42238.

It is an arithmetic number, because the mean of its divisors is an integer number (71490216).

Almost surely, 2^690271525 is an apocalyptic number.

It is an amenable number.

690271525 is a deficient number, since it is larger than the sum of its proper divisors (167611067).

690271525 is a wasteful number, since it uses less digits than its factorization.

690271525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62780 (or 62775 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 690271525 is about 26273.0189548137. The cubic root of 690271525 is about 883.7714874669.

The spelling of 690271525 in words is "six hundred ninety million, two hundred seventy-one thousand, five hundred twenty-five".