625435501 has 8 divisors (see below), whose sum is σ = 636275000. Its totient is φ = 614615040.

The previous prime is 625435471. The next prime is 625435511. The reversal of 625435501 is 105534526.

It can be written as a sum of positive squares in 4 ways, for example, as 28366276 + 597069225 = 5326^2 + 24435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625435501 - 2¹⁹ = 624911213 is a prime.

It is a super-2 number, since 2×625435501² = 782339131822242002, 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 (625435511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72085 + ... + 80293.

It is an arithmetic number, because the mean of its divisors is an integer number (79534375).

Almost surely, 2^625435501 is an apocalyptic number.

625435501 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

625435501 is a deficient number, since it is larger than the sum of its proper divisors (10839499).

625435501 is a wasteful number, since it uses less digits than its factorization.

625435501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9519.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 625435501 is about 25008.7085032394. The cubic root of 625435501 is about 855.1865128939.

The spelling of 625435501 in words is "six hundred twenty-five million, four hundred thirty-five thousand, five hundred one".