401613797025 has 144 divisors (see below), whose sum is σ = 880049451008. Its totient is φ = 177671880000.

The previous prime is 401613797021. The next prime is 401613797027. The reversal of 401613797025 is 520797316104.

401613797025 is a `hidden beast` number, since 4 + 0 + 1 + 613 + 7 + 9 + 7 + 0 + 25 = 666.

It is not a de Polignac number, because 401613797025 - 2² = 401613797021 is a prime.

It is a super-3 number, since 3×401613797025³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (401613797021) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1165950 + ... + 1470600.

Almost surely, 2^401613797025 is an apocalyptic number.

401613797025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

401613797025 is an abundant number, since it is smaller than the sum of its proper divisors (478435653983).

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

401613797025 is a wasteful number, since it uses less digits than its factorization.

401613797025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304714 (or 304697 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 401613797025 in words is "four hundred one billion, six hundred thirteen million, seven hundred ninety-seven thousand, twenty-five".