74613525 has 72 divisors (see below), whose sum is σ = 145883520. Its totient is φ = 33546240.

The previous prime is 74613503. The next prime is 74613529. The reversal of 74613525 is 52531647.

74613525 = 1197² + 1198² + ... + 1246².

It is not a de Polignac number, because 74613525 - 2⁸ = 74613269 is a prime.

It is a super-2 number, since 2×74613525² = 11134356225851250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74613529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 290197 + ... + 290453.

It is an arithmetic number, because the mean of its divisors is an integer number (2026160).

Almost surely, 2^74613525 is an apocalyptic number.

74613525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74613525 is a deficient number, since it is larger than the sum of its proper divisors (71269995).

74613525 is a wasteful number, since it uses less digits than its factorization.

74613525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 351 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 74613525 is about 8637.9120741068. The cubic root of 74613525 is about 420.9907167664.

The spelling of 74613525 in words is "seventy-four million, six hundred thirteen thousand, five hundred twenty-five".