25093764 has 18 divisors (see below), whose sum is σ = 63431550. Its totient is φ = 8364576.

The previous prime is 25093727. The next prime is 25093769. The reversal of 25093764 is 46739052.

It can be written as a sum of positive squares in only one way, i.e., 24206400 + 887364 = 4920^2 + 942^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 697049 = 25093764 / (2 + 5 + 0 + 9 + 3 + 7 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (25093769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348489 + ... + 348560.

It is an arithmetic number, because the mean of its divisors is an integer number (3523975).

Almost surely, 2^25093764 is an apocalyptic number.

It is an amenable number.

25093764 is an abundant number, since it is smaller than the sum of its proper divisors (38337786).

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

25093764 is a wasteful number, since it uses less digits than its factorization.

25093764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697059 (or 697054 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 25093764 is about 5009.3676247606. The cubic root of 25093764 is about 292.7668745559.

It can be divided in two parts, 250937 and 64, that added together give a square (251001 = 501²).

The spelling of 25093764 in words is "twenty-five million, ninety-three thousand, seven hundred sixty-four".