75655131 has 12 divisors (see below), whose sum is σ = 106463592. Its totient is φ = 47781504.

The previous prime is 75655109. The next prime is 75655133. The reversal of 75655131 is 13155657.

It is not a de Polignac number, because 75655131 - 2¹³ = 75646939 is a prime.

It is a super-2 number, since 2×75655131² = 11447397693254322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75655092 and 75655101.

It is not an unprimeable number, because it can be changed into a prime (75655133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33846 + ... + 36011.

It is an arithmetic number, because the mean of its divisors is an integer number (8871966).

Almost surely, 2^75655131 is an apocalyptic number.

75655131 is a deficient number, since it is larger than the sum of its proper divisors (30808461).

75655131 is a wasteful number, since it uses less digits than its factorization.

75655131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69898 (or 69879 counting only the distinct ones).

The product of its digits is 15750, while the sum is 33.

The square root of 75655131 is about 8697.9958036320. The cubic root of 75655131 is about 422.9406832417.

The spelling of 75655131 in words is "seventy-five million, six hundred fifty-five thousand, one hundred thirty-one".