75025157 has 4 divisors (see below), whose sum is σ = 76440780. Its totient is φ = 73609536.

The previous prime is 75025133. The next prime is 75025183. The reversal of 75025157 is 75152057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75152057 = 41 ⋅1832977.

It can be written as a sum of positive squares in 2 ways, for example, as 67010596 + 8014561 = 8186^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 75025157 - 2¹⁰ = 75024133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75025127) 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, 707732 + ... + 707837.

It is an arithmetic number, because the mean of its divisors is an integer number (19110195).

Almost surely, 2^75025157 is an apocalyptic number.

It is an amenable number.

75025157 is a deficient number, since it is larger than the sum of its proper divisors (1415623).

75025157 is a wasteful number, since it uses less digits than its factorization.

75025157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415622.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 75025157 is about 8661.7063561402. The cubic root of 75025157 is about 421.7634790145.

Subtracting from 75025157 its sum of digits (32), we obtain a triangular number (75025125 = T₁₂₂₄₉).

The spelling of 75025157 in words is "seventy-five million, twenty-five thousand, one hundred fifty-seven".