20701425 has 12 divisors (see below), whose sum is σ = 34226480. Its totient is φ = 11040720.

The previous prime is 20701423. The next prime is 20701441. The reversal of 20701425 is 52410702.

It is not a de Polignac number, because 20701425 - 2¹ = 20701423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20701423) 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, 137935 + ... + 138084.

Almost surely, 2^20701425 is an apocalyptic number.

20701425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20701425 is a deficient number, since it is larger than the sum of its proper divisors (13525055).

20701425 is a wasteful number, since it uses less digits than its factorization.

20701425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276032 (or 276027 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20701425 is about 4549.8818665983. The cubic root of 20701425 is about 274.5786384561.

The spelling of 20701425 in words is "twenty million, seven hundred one thousand, four hundred twenty-five".