61526740 has 48 divisors (see below), whose sum is σ = 149252544. Its totient is φ = 21056000.

The previous prime is 61526687. The next prime is 61526749. The reversal of 61526740 is 4762516.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61526749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4486 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (3109428).

Almost surely, 2^61526740 is an apocalyptic number.

It is an amenable number.

61526740 is an abundant number, since it is smaller than the sum of its proper divisors (87725804).

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

61526740 is a wasteful number, since it uses less digits than its factorization.

61526740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16488 (or 16486 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 61526740 is about 7843.8982655310. The cubic root of 61526740 is about 394.7795383555.

The spelling of 61526740 in words is "sixty-one million, five hundred twenty-six thousand, seven hundred forty".