52151040 has 180 divisors, whose sum is σ = 186976944. Its totient is φ = 13879296.

The previous prime is 52151039. The next prime is 52151069. The reversal of 52151040 is 4015125.

It is a tau number, because it is divible by the number of its divisors (180).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 103429 + ... + 103931.

Almost surely, 2^52151040 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 52151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93488472).

52151040 is an abundant number, since it is smaller than the sum of its proper divisors (134825904).

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

52151040 is an equidigital number, since it uses as much as digits as its factorization.

52151040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52151040 is about 7221.5676968370. The cubic root of 52151040 is about 373.6121499961.

Adding to 52151040 its reverse (4015125), we get a palindrome (56166165).

The spelling of 52151040 in words is "fifty-two million, one hundred fifty-one thousand, forty".