36257251 has 4 divisors (see below), whose sum is σ = 36798472. Its totient is φ = 35716032.

The previous prime is 36257239. The next prime is 36257297. The reversal of 36257251 is 15275263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15275263 = 67 ⋅227989.

It is a cyclic number.

It is not a de Polignac number, because 36257251 - 2²¹ = 34160099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36257051) 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, 270510 + ... + 270643.

It is an arithmetic number, because the mean of its divisors is an integer number (9199618).

Almost surely, 2^36257251 is an apocalyptic number.

36257251 is a deficient number, since it is larger than the sum of its proper divisors (541221).

36257251 is an equidigital number, since it uses as much as digits as its factorization.

36257251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541220.

The product of its digits is 12600, while the sum is 31.

The square root of 36257251 is about 6021.3994220613. The cubic root of 36257251 is about 330.9773626599.

It can be divided in two parts, 3625 and 7251, that multiplied together give a triangular number (26284875 = T₇₂₅₀).

The spelling of 36257251 in words is "thirty-six million, two hundred fifty-seven thousand, two hundred fifty-one".