45571500 has 288 divisors, whose sum is σ = 166944960. Its totient is φ = 10368000.

The previous prime is 45571469. The next prime is 45571511. The reversal of 45571500 is 517554.

45571500 is a `hidden beast` number, since 45 + 571 + 50 + 0 = 666.

It is a super-2 number, since 2×45571500² = 4153523224500000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1111480 + ... + 1111520.

It is an arithmetic number, because the mean of its divisors is an integer number (579670).

Almost surely, 2^45571500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45571500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83472480).

45571500 is an abundant number, since it is smaller than the sum of its proper divisors (121373460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45571500 is a wasteful number, since it uses less digits than its factorization.

45571500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 83 counting only the distinct ones).

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

The square root of 45571500 is about 6750.6666337481. Note that the first 4 decimals coincide. The cubic root of 45571500 is about 357.1887521972.

The spelling of 45571500 in words is "forty-five million, five hundred seventy-one thousand, five hundred".