45377553 has 16 divisors (see below), whose sum is σ = 65581376. Its totient is φ = 27743040.

The previous prime is 45377543. The next prime is 45377569. The reversal of 45377553 is 35577354.

It is not a de Polignac number, because 45377553 - 2¹⁸ = 45115409 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45377533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2418 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (4098836).

Almost surely, 2^45377553 is an apocalyptic number.

It is an amenable number.

45377553 is a deficient number, since it is larger than the sum of its proper divisors (20203823).

45377553 is a wasteful number, since it uses less digits than its factorization.

45377553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584.

The product of its digits is 220500, while the sum is 39.

The square root of 45377553 is about 6736.2862914220. The cubic root of 45377553 is about 356.6813137297.

It can be divided in two parts, 4537 and 7553, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 45377553 in words is "forty-five million, three hundred seventy-seven thousand, five hundred fifty-three".