52455120 has 80 divisors (see below), whose sum is σ = 165322752. Its totient is φ = 13754880.

The previous prime is 52455103. The next prime is 52455121. The reversal of 52455120 is 2155425.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×52455120² = 5503079228428800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52455121) 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, 12849 + ... + 16431.

Almost surely, 2^52455120 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 52455120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82661376).

52455120 is an abundant number, since it is smaller than the sum of its proper divisors (112867632).

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

52455120 is a wasteful number, since it uses less digits than its factorization.

52455120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 52455120 is about 7242.5906967052. The cubic root of 52455120 is about 374.3368903416.

The spelling of 52455120 in words is "fifty-two million, four hundred fifty-five thousand, one hundred twenty".