625021838 has 8 divisors (see below), whose sum is σ = 1071466032. Its totient is φ = 267866496.

The previous prime is 625021823. The next prime is 625021841. The reversal of 625021838 is 838120526.

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

It is a super-3 number, since 3×625021838³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625021798 and 625021807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22322195 + ... + 22322222.

It is an arithmetic number, because the mean of its divisors is an integer number (133933254).

Almost surely, 2^625021838 is an apocalyptic number.

625021838 is a deficient number, since it is larger than the sum of its proper divisors (446444194).

625021838 is a wasteful number, since it uses less digits than its factorization.

625021838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44644426.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 625021838 is about 25000.4367561849. The cubic root of 625021838 is about 854.9979312103.

The spelling of 625021838 in words is "six hundred twenty-five million, twenty-one thousand, eight hundred thirty-eight".