625401415 has 4 divisors (see below), whose sum is σ = 750481704. Its totient is φ = 500321128.

The previous prime is 625401391. The next prime is 625401419. The reversal of 625401415 is 514104526.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 625401415 - 2¹¹ = 625399367 is a prime.

It is a super-2 number, since 2×625401415² = 782253859768004450, 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 (625401419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62540137 + ... + 62540146.

It is an arithmetic number, because the mean of its divisors is an integer number (187620426).

Almost surely, 2^625401415 is an apocalyptic number.

625401415 is a deficient number, since it is larger than the sum of its proper divisors (125080289).

625401415 is a wasteful number, since it uses less digits than its factorization.

625401415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125080288.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 625401415 is about 25008.0270113418. The cubic root of 625401415 is about 855.1709768303.

The spelling of 625401415 in words is "six hundred twenty-five million, four hundred one thousand, four hundred fifteen".