401573025 has 96 divisors (see below), whose sum is σ = 866254080. Its totient is φ = 178536960.

The previous prime is 401573021. The next prime is 401573047. The reversal of 401573025 is 520375104.

It is a happy number.

It is not a de Polignac number, because 401573025 - 2² = 401573021 is a prime.

It is a super-2 number, since 2×401573025² = 322521788815301250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 401573025.

It is not an unprimeable number, because it can be changed into a prime (401573021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 173677 + ... + 175973.

It is an arithmetic number, because the mean of its divisors is an integer number (9023480).

Almost surely, 2^401573025 is an apocalyptic number.

401573025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

401573025 is an abundant number, since it is smaller than the sum of its proper divisors (464681055).

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

401573025 is a wasteful number, since it uses less digits than its factorization.

401573025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 401573025 is about 20039.2870382157. The cubic root of 401573025 is about 737.7708820122.

The spelling of 401573025 in words is "four hundred one million, five hundred seventy-three thousand, twenty-five".