125420650 has 48 divisors (see below), whose sum is σ = 245118240. Its totient is φ = 47678400.

The previous prime is 125420609. The next prime is 125420651. The reversal of 125420650 is 56024521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (125420651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96505 + ... + 97795.

It is an arithmetic number, because the mean of its divisors is an integer number (5106630).

Almost surely, 2^125420650 is an apocalyptic number.

125420650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125420650 is a deficient number, since it is larger than the sum of its proper divisors (119697590).

125420650 is a wasteful number, since it uses less digits than its factorization.

125420650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 125420650 is about 11199.1361273984. The cubic root of 125420650 is about 500.5602386974.

It can be divided in two parts, 1254 and 20650, that added together give a square (21904 = 148²).

The spelling of 125420650 in words is "one hundred twenty-five million, four hundred twenty thousand, six hundred fifty".