2265601440531 has 32 divisors (see below), whose sum is σ = 3584051976960. Its totient is φ = 1254920112000.

The previous prime is 2265601440517. The next prime is 2265601440551. The reversal of 2265601440531 is 1350441065622.

It is not a de Polignac number, because 2265601440531 - 2⁹ = 2265601440019 is a prime.

It is a super-2 number, since 2×2265601440531² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2265601440531.

It is not an unprimeable number, because it can be changed into a prime (2265601440551) 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, 26100841 + ... + 26187498.

It is an arithmetic number, because the mean of its divisors is an integer number (112001624280).

Almost surely, 2^{2265601440531} is an apocalyptic number.

2265601440531 is a deficient number, since it is larger than the sum of its proper divisors (1318450536429).

2265601440531 is a wasteful number, since it uses less digits than its factorization.

2265601440531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52288467.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 2265601440531 in words is "two trillion, two hundred sixty-five billion, six hundred one million, four hundred forty thousand, five hundred thirty-one".