73561275 has 18 divisors (see below), whose sum is σ = 131756820. Its totient is φ = 39232560.

The previous prime is 73561237. The next prime is 73561277. The reversal of 73561275 is 57216537.

73561275 is a `hidden beast` number, since 7 + 35 + 612 + 7 + 5 = 666.

It is not a de Polignac number, because 73561275 - 2⁹ = 73560763 is a prime.

It is a super-2 number, since 2×73561275² = 10822522359251250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73561277) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 163245 + ... + 163694.

Almost surely, 2^73561275 is an apocalyptic number.

73561275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

73561275 is a deficient number, since it is larger than the sum of its proper divisors (58195545).

73561275 is a wasteful number, since it uses less digits than its factorization.

73561275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326955 (or 326947 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 73561275 is about 8576.7869858123. The cubic root of 73561275 is about 419.0023087764.

The spelling of 73561275 in words is "seventy-three million, five hundred sixty-one thousand, two hundred seventy-five".