1625150550 has 48 divisors (see below), whose sum is σ = 4043616192. Its totient is φ = 431949600.

The previous prime is 1625150533. The next prime is 1625150563. The reversal of 1625150550 is 550515261.

1625150550 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 2×1625150550² = 5282228620330605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28405 + ... + 63695.

It is an arithmetic number, because the mean of its divisors is an integer number (84242004).

Almost surely, 2^1625150550 is an apocalyptic number.

1625150550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1625150550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021808096).

1625150550 is an abundant number, since it is smaller than the sum of its proper divisors (2418465642).

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

1625150550 is a wasteful number, since it uses less digits than its factorization.

1625150550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35613 (or 35608 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1625150550 is about 40313.1560411735. The cubic root of 1625150550 is about 1175.7036497584.

The spelling of 1625150550 in words is "one billion, six hundred twenty-five million, one hundred fifty thousand, five hundred fifty".