75630051 has 32 divisors (see below), whose sum is σ = 134796800. Its totient is φ = 40940640.

The previous prime is 75630043. The next prime is 75630091. The reversal of 75630051 is 15003657.

It is not a de Polignac number, because 75630051 - 2³ = 75630043 is a prime.

It is a super-2 number, since 2×75630051² = 11439809228525202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75629997 and 75630024.

It is not an unprimeable number, because it can be changed into a prime (75630001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6940 + ... + 14121.

It is an arithmetic number, because the mean of its divisors is an integer number (4212400).

Almost surely, 2^75630051 is an apocalyptic number.

75630051 is a deficient number, since it is larger than the sum of its proper divisors (59166749).

75630051 is a wasteful number, since it uses less digits than its factorization.

75630051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21096 (or 21090 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 75630051 is about 8696.5539726952. The cubic root of 75630051 is about 422.8939425270.

The spelling of 75630051 in words is "seventy-five million, six hundred thirty thousand, fifty-one".