75400051 has 4 divisors (see below), whose sum is σ = 75862792. Its totient is φ = 74937312.

The previous prime is 75400033. The next prime is 75400057. The reversal of 75400051 is 15000457.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75400051 - 2⁵ = 75400019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75399995 and 75400031.

It is not an unprimeable number, because it can be changed into a prime (75400057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231126 + ... + 231451.

It is an arithmetic number, because the mean of its divisors is an integer number (18965698).

Almost surely, 2^75400051 is an apocalyptic number.

75400051 is a deficient number, since it is larger than the sum of its proper divisors (462741).

75400051 is a wasteful number, since it uses less digits than its factorization.

75400051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462740.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 75400051 is about 8683.3202751021. The cubic root of 75400051 is about 422.4648169295.

The spelling of 75400051 in words is "seventy-five million, four hundred thousand, fifty-one".