45001557 has 12 divisors (see below), whose sum is σ = 68423680. Its totient is φ = 28421928.

The previous prime is 45001543. The next prime is 45001573. The reversal of 45001557 is 75510054.

45001557 is a `hidden beast` number, since 4 + 500 + 155 + 7 = 666.

It is not a de Polignac number, because 45001557 - 2⁶ = 45001493 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 45001557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45001157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131413 + ... + 131754.

Almost surely, 2^45001557 is an apocalyptic number.

It is an amenable number.

45001557 is a deficient number, since it is larger than the sum of its proper divisors (23422123).

45001557 is a wasteful number, since it uses less digits than its factorization.

45001557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263192 (or 263189 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 45001557 is about 6708.3199834236. The cubic root of 45001557 is about 355.6934326853.

The spelling of 45001557 in words is "forty-five million, one thousand, five hundred fifty-seven".