1625105400 has 48 divisors (see below), whose sum is σ = 5037828600. Its totient is φ = 433361280.

The previous prime is 1625105369. The next prime is 1625105401. The reversal of 1625105400 is 45015261.

1625105400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1625105400² = 5281935122218320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625105401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1353655 + ... + 1354854.

Almost surely, 2^1625105400 is an apocalyptic number.

1625105400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625105400 is an abundant number, since it is smaller than the sum of its proper divisors (3412723200).

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

1625105400 is a wasteful number, since it uses less digits than its factorization.

1625105400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708528 (or 2708519 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1625105400 is about 40312.5960463972. The cubic root of 1625105400 is about 1175.6927618417.

It can be divided in two parts, 162510 and 5400, that added together give a triangular number (167910 = T₅₇₉).

The spelling of 1625105400 in words is "one billion, six hundred twenty-five million, one hundred five thousand, four hundred".