45025631551 has 4 divisors (see below), whose sum is σ = 45043840912. Its totient is φ = 45007422192.

The previous prime is 45025631549. The next prime is 45025631683. The reversal of 45025631551 is 15513652054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15513652054 = 2 ⋅7756826027.

It is a cyclic number.

It is not a de Polignac number, because 45025631551 - 2¹ = 45025631549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45025631551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45025631531) 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, 9100971 + ... + 9105916.

It is an arithmetic number, because the mean of its divisors is an integer number (11260960228).

Almost surely, 2^45025631551 is an apocalyptic number.

45025631551 is a deficient number, since it is larger than the sum of its proper divisors (18209361).

45025631551 is a wasteful number, since it uses less digits than its factorization.

45025631551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18209360.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 45025631551 in words is "forty-five billion, twenty-five million, six hundred thirty-one thousand, five hundred fifty-one".