401525701 has 4 divisors (see below), whose sum is σ = 410863552. Its totient is φ = 392187852.

The previous prime is 401525699. The next prime is 401525713. The reversal of 401525701 is 107525104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401525701 - 2¹ = 401525699 is a prime.

It is a super-2 number, since 2×401525701² = 322445777127082802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401525791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4668861 + ... + 4668946.

It is an arithmetic number, because the mean of its divisors is an integer number (102715888).

Almost surely, 2^401525701 is an apocalyptic number.

It is an amenable number.

401525701 is a deficient number, since it is larger than the sum of its proper divisors (9337851).

401525701 is an equidigital number, since it uses as much as digits as its factorization.

401525701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337850.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 401525701 is about 20038.1062228944. The cubic root of 401525701 is about 737.7418996199.

The spelling of 401525701 in words is "four hundred one million, five hundred twenty-five thousand, seven hundred one".